Just a curiosity, but does anyone know how this 1972 first day cancel postal card could be re-used in 1974 for regular postal duty?
Was there some sort of an allowance that these cards were still valid as postage even after being sold with the the first day cancel? (I note that the cancel merely says US Postal Service with no city/state mentioned in that marking.)
Posted 01/25/2011 12:38 am
